OpenEMM Support

-can somebody tell me what is the difference between irregular Bounces (irreguläre Bounces) and Other Bounces ( sonstige Bounces)

-what is the significance of the following Errors.

1- Sep 11 02:28:58 mail sendmail[5214]: 00002700000001B5D: to=<m@ufp24.de>, delay=12:48:48, xdelay=00:00:03, mailer ...